John 20:9 New English Translation

⁹(For they did not yet understand^[a] the scripture that Jesus^[b] must rise from the dead.)^[c]

John 20:9 tn Or “yet know.”
John 20:9 tn Grk “he”; the referent (Jesus) has been specified in the translation for clarity.
John 20:9 sn Verse 9 is a parenthetical note by the author. The author does not explicitly mention what OT scripture is involved (neither does Paul in 1 Cor 15:4, for that matter). The resurrection of the Messiah in general terms may have been seen in Isa 53:10-12 and Ps 16:10. Specific references may have been understood in Jonah 1:17 and Hos 6:2 because of the mention of “the third day.” Beyond this it is not possible to be more specific.

New English Translation (NET)